Questions

Q:

What is common between Aerobic and Anaerobic Respiration?

A) Krebs cycle B) Glycolysis
C) Electron transport chain D) All the above
 
Answer & Explanation Answer: B) Glycolysis

Explanation:

Glycolysis is common between Aerobic and Anaerobic Respiration.

 

Cellular respiration is the process by which glucose is broken down to form ATP molecules, which act as carriers of cellular energy. The first phase is called glycolysis and is common to both aerobic (respiration in the presence of oxygen) and anaerobic (respiration in the absence of oxygen) respiration.

 

During glycolysis, glucose is split to forms two pyruvate molecules and 2 molecules of ATP. This occurs in the cytoplasm of the cell.

 

If oxygen in present, the pyruvate molecules will be used in the Krebs cycle, to yield more ATP molecules. If oxygen is absent, the pyruvate is converted into lactic acid, or ethanol and carbon dioxide, in animals or plants, respectively. 

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Filed Under: General Science
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Q:

Stethoscope was invented by

A) Bessemer B) Rane Laennec
C) Henry Becquarrel D) none of these
 
Answer & Explanation Answer: B) Rane Laennec

Explanation:
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Filed Under: Inventions

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Q:

Who gave the slogan 'Back to the Vedas (Vedo ki aur lauto)'?

A) Guru Nanank Dev Ji B) Dayanand Saraswati
C) Swami Vivekananda D) Raja Ram Mohan Roy
 
Answer & Explanation Answer: B) Dayanand Saraswati

Explanation:
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Filed Under: Indian History
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Q:

Speed in a given direction is called

A) Velocity B) Torque
C) Acceleration D) Displacement
 
Answer & Explanation Answer: A) Velocity

Explanation:

Speed in a given direction is called Velocity.

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Filed Under: Physics
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Q:

A series of fast moving still pictures can be made to appear as a moving picture because the eye 

A) can focus very rapidly as pictures change B) is quicker than the brain
C) can see 2 images separated only if the interval betwen seeing them is more than one-tenth of a second D) can shut out some of the light
 
Answer & Explanation Answer: C) can see 2 images separated only if the interval betwen seeing them is more than one-tenth of a second

Explanation:

The eye can see images separately only if they are exhibited at an interval of more than 1/10 of a second. In the case of a movie, the still pictures come one after the other at less than this minimum interval. So we do not see them separately but only as a continuous moving picture.

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Filed Under: Physics

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Q:

Rearrange CITCAR into a word?

A) Cartic B) Ritcar
C) Arctic D) Airtic
 
Answer & Explanation Answer: C) Arctic

Explanation:

After all possiblle rearrangements, the only word with a meaning is ARCTIC fro the given given letters.

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Filed Under: English
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Q:

Washing soda is the common name for

A) Sodium Bicarbonate B) Calcium Carbonate
C) Sodium Carbonate D) Calcium Bicarbonate
 
Answer & Explanation Answer: C) Sodium Carbonate

Explanation:

Washing soda is the common name for Sodium Carbonate (Na2CO3). It is also called as Soda Ash.

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Filed Under: Chemistry
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Q:

Which of the following is used to preserve specimens in the biology laboratory?

A) Phenol B) Benzaldehyde
C) Formaldehyde D) Acetic acid
 
Answer & Explanation Answer: C) Formaldehyde

Explanation:

A 40% solution of Formaldehyde known as Formalin is used in the preservation of biological specimens because of its hardening action on proteins. 

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Filed Under: Chemistry

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